Programa para rotacionar matriz de caracteres

Autor: andre_luis • Categoria: Programação C/C++ • Postado em 09 Jan 2014 21:24 • Visualizado: 2043x

Ao lidarmos com displays que não têm padrão de caracteres no tamanho desejado, precisamos inserir mapas de caracteres no código do programa. Como gerar a tabela inteira é uma tarefa um tanto proibitiva, o próximo passo é fazer uma busca na web por algum arquivo de bitmap disponível.

No entanto, depois de encontrá-lo e colocar o mapa no código, não raramente nos damos conta de que esses caracteres não foram criados na direção que o painel será posicionado, e teremos de fazer rotação de + / - 90 graus no mapa, o que significa:

Queremos converter isso...


...nisso


O programa abaixo realiza essa tarefa: Primeiro, definimos o arquivo que contém o código do mapa deve ser incluído, em seguida seleciona-o e, finalmente transpôe-se cada matriz de caracteres da seguinte forma:

Converter.c
cpp code

void main(void)
{ 
#define FONT8X8                

#ifdef  FONT8X8
#define FONT_WIDTH      8
#define FONT_HEIGHT     8
#endif

const unsigned char Alphabet[] = {
#ifdef   FONT5X7  
#include "Font5x7.c"
#endif
#ifdef   FONT8X12  
#include "Font8x12__8x16.c"
#endif
#ifdef   FONT8X8  
#include "Font8x8.c"
#endif
};

#define ALPHABET_SIZE sizeof(Alphabet)

unsigned char Alphabet_90[ALPHABET_SIZE]          ;
unsigned char CountAlphabet = 0                    ;
unsigned char CountRow    = 0                      ;
unsigned char CountColumn   = FONT_WIDTH-1        ;
unsigned char PointRow                           ;
unsigned char PointColumn                         ;
while ( CountAlphabet < ALPHABET_SIZE )
      {
      CountRow     = 0                             ;
      PointRow    = BIT7                          ;
      while ( CountRow < FONT_HEIGHT )
            {
            CountColumn   = FONT_WIDTH-1          ;
            PointColumn   = BIT7                  ;            
            while ( PointColumn )
               {
               unsigned int PontAlph   =  (CountRow  + (CountAlphabet*FONT_HEIGHT  ))  ;
               unsigned int PontAlph90 =  (CountColumn + (CountAlphabet*FONT_WIDTH ))  ;
               if ( Alphabet[PontAlph] & PointColumn )  Alphabet_90[PontAlph90] |= PointRow ;
                  else                                  Alphabet_90[PontAlph90] &=~PointRow ;
               PointColumn >>= 1 ;  
               CountColumn--     ;           
               }
            PointRow >>= 1     ;  
            CountRow++         ;   
            }
      CountAlphabet++            ;
      }
}

O resultado pode ser obtido na janela de saída na ferramenta IDE do compilador / simulador.
Para manter os arquivos bitmap separado do conversor, um exemplo de arquivo é apresentado:

Font8x8.c
cpp code

/* 20 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*   */
/* 21 */  0x18, 0x3c, 0x3c, 0x18, 0x18, 0x00, 0x18, 0x00, /* ! */
/* 22 */  0x6C, 0x6C, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, /* " */
/* 23 */  0x36, 0x36, 0x7F, 0x36, 0x7F, 0x36, 0x36, 0x00, /* # */
/* 24 */  0x0C, 0x3F, 0x68, 0x3E, 0x0B, 0x7E, 0x18, 0x00, /* $ */
/* 25 */  0x60, 0x66, 0x0C, 0x18, 0x30, 0x66, 0x06, 0x00, /* % */
/* 26 */  0x38, 0x6C, 0x6C, 0x38, 0x6D, 0x66, 0x3B, 0x00, /* & */
/* 27 */  0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, /* ' */
/* 28 */  0x0C, 0x18, 0x30, 0x30, 0x30, 0x18, 0x0C, 0x00, /* ( */
/* 29 */  0x30, 0x18, 0x0C, 0x0C, 0x0C, 0x18, 0x30, 0x00, /* ) */
/* 2A */  0x00, 0x18, 0x7E, 0x3C, 0x7E, 0x18, 0x00, 0x00, /* * */
/* 2B */  0x00, 0x18, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x00, /* + */
/* 2C */  0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, /* , */
/* 2D */  0x00, 0x00, 0x00, 0x7E, 0x00, 0x00, 0x00, 0x00, /* - */
/* 2E */  0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, /* . */
/* 2F */  0x00, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x00, 0x00, /* / */
/* 30 */  0x3C, 0x66, 0x6E, 0x7E, 0x76, 0x66, 0x3C, 0x00, /* 0 */
/* 31 */  0x18, 0x38, 0x18, 0x18, 0x18, 0x18, 0x7E, 0x00, /* 1 */
/* 32 */  0x3C, 0x66, 0x06, 0x0C, 0x18, 0x30, 0x7E, 0x00, /* 2 */
/* 33 */  0x3C, 0x66, 0x06, 0x1C, 0x06, 0x66, 0x3C, 0x00, /* 3 */
/* 34 */  0x0C, 0x1C, 0x3C, 0x6C, 0x7E, 0x0C, 0x0C, 0x00, /* 4 */
/* 35 */  0x7E, 0x60, 0x7C, 0x06, 0x06, 0x66, 0x3C, 0x00, /* 5 */
/* 36 */  0x1C, 0x30, 0x60, 0x7C, 0x66, 0x66, 0x3C, 0x00, /* 6 */
/* 37 */  0x7E, 0x06, 0x0C, 0x18, 0x30, 0x30, 0x30, 0x00, /* 7 */
/* 38 */  0x3C, 0x66, 0x66, 0x3C, 0x66, 0x66, 0x3C, 0x00, /* 8 */
/* 39 */  0x3C, 0x66, 0x66, 0x3E, 0x06, 0x0C, 0x38, 0x00, /* 9 */
/* 3A */  0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, /* : */
/* 3B */  0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x30, /* ; */
/* 3C */  0x0C, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0C, 0x00, /* < */
/* 3D */  0x00, 0x00, 0x7E, 0x00, 0x7E, 0x00, 0x00, 0x00, /* = */ 
/* 3E */  0x30, 0x18, 0x0C, 0x06, 0x0C, 0x18, 0x30, 0x00, /* > */
/* 3F */  0x3C, 0x66, 0x0C, 0x18, 0x18, 0x00, 0x18, 0x00, /* ? */
/* 40 */  0x3C, 0x66, 0x6E, 0x6A, 0x6E, 0x60, 0x3C, 0x00, /* @ */
/* 41 */  0x3C, 0x66, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00, /* A */
/* 42 */  0x7C, 0x66, 0x66, 0x7C, 0x66, 0x66, 0x7C, 0x00, /* B */
/* 43 */  0x3C, 0x66, 0x60, 0x60, 0x60, 0x66, 0x3C, 0x00, /* C */
/* 44 */  0x78, 0x6C, 0x66, 0x66, 0x66, 0x6C, 0x78, 0x00, /* D */
/* 45 */  0x7E, 0x60, 0x60, 0x7C, 0x60, 0x60, 0x7E, 0x00, /* E */
/* 46 */  0x7E, 0x60, 0x60, 0x7C, 0x60, 0x60, 0x60, 0x00, /* F */
/* 47 */  0x3C, 0x66, 0x60, 0x6E, 0x66, 0x66, 0x3C, 0x00, /* G */
/* 48 */  0x66, 0x66, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00, /* H */
/* 49 */  0x7E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7E, 0x00, /* I */
/* 4A */  0x3E, 0x0C, 0x0C, 0x0C, 0x0C, 0x6C, 0x38, 0x00, /* J */
/* 4B */  0x66, 0x6C, 0x78, 0x70, 0x78, 0x6C, 0x66, 0x00, /* K */
/* 4C */  0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x7E, 0x00, /* L */
/* 4D */  0x63, 0x77, 0x7F, 0x6B, 0x6B, 0x63, 0x63, 0x00, /* M */
/* 4E */  0x66, 0x66, 0x76, 0x7E, 0x6E, 0x66, 0x66, 0x00, /* N */
/* 4F */  0x3C, 0x66, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00, /* O */
/* 50 */  0x7C, 0x66, 0x66, 0x7C, 0x60, 0x60, 0x60, 0x00, /* P */
/* 51 */  0x3C, 0x66, 0x66, 0x66, 0x6A, 0x6C, 0x36, 0x00, /* Q */
/* 52 */  0x7C, 0x66, 0x66, 0x7C, 0x6C, 0x66, 0x66, 0x00, /* R */
/* 53 */  0x3C, 0x66, 0x60, 0x3C, 0x06, 0x66, 0x3C, 0x00, /* S */
/* 54 */  0x7E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, /* T */
/* 55 */  0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00, /* U */
/* 56 */  0x66, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, /* V */
/* 57 */  0x63, 0x63, 0x6B, 0x6B, 0x7F, 0x77, 0x63, 0x00, /* W */
/* 58 */  0x66, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x66, 0x00, /* X */
/* 59 */  0x66, 0x66, 0x66, 0x3C, 0x18, 0x18, 0x18, 0x00, /* Y */
/* 5A */  0x7E, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x7E, 0x00, /* Z */
/* 5B */  0x7C, 0x60, 0x60, 0x60, 0x60, 0x60, 0x7C, 0x00, /* [ */
/* 5C */  0x00, 0x60, 0x30, 0x18, 0x0C, 0x06, 0x00, 0x00, /* \ */
/* 5D */  0x3E, 0x06, 0x06, 0x06, 0x06, 0x06, 0x3E, 0x00, /* ] */
/* 5E */  0x3C, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ^ */
/* 5F */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, /* _ */
/* 60 */  0x30, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ` */
/* 61 */  0x00, 0x00, 0x3C, 0x06, 0x3E, 0x66, 0x3E, 0x00, /* a */
/* 62 */  0x60, 0x60, 0x7C, 0x66, 0x66, 0x66, 0x7C, 0x00, /* b */
/* 63 */  0x00, 0x00, 0x3C, 0x66, 0x60, 0x66, 0x3C, 0x00, /* c */
/* 64 */  0x06, 0x06, 0x3E, 0x66, 0x66, 0x66, 0x3E, 0x00, /* d */
/* 65 */  0x00, 0x00, 0x3C, 0x66, 0x7E, 0x60, 0x3C, 0x00, /* e */
/* 66 */  0x1C, 0x30, 0x30, 0x7C, 0x30, 0x30, 0x30, 0x00, /* f */
/* 67 */  0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x3C, /* g */
/* 68 */  0x60, 0x60, 0x7C, 0x66, 0x66, 0x66, 0x66, 0x00, /* h */
/* 69 */  0x18, 0x00, 0x38, 0x18, 0x18, 0x18, 0x3C, 0x00, /* i */
/* 6A */  0x18, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x70, /* j */
/* 6B */  0x60, 0x60, 0x66, 0x6C, 0x78, 0x6C, 0x66, 0x00, /* k */
/* 6C */  0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00, /* l */
/* 6D */  0x00, 0x00, 0x36, 0x7F, 0x6B, 0x6B, 0x63, 0x00, /* m */
/* 6E */  0x00, 0x00, 0x7C, 0x66, 0x66, 0x66, 0x66, 0x00, /* n */
/* 6F */  0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x00, /* o */
/* 70 */  0x00, 0x00, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0x60, /* p */
/* 71 */  0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x07, /* q */
/* 72 */  0x00, 0x00, 0x6C, 0x76, 0x60, 0x60, 0x60, 0x00, /* r */
/* 73 */  0x00, 0x00, 0x3E, 0x60, 0x3C, 0x06, 0x7C, 0x00, /* s */
/* 74 */  0x30, 0x30, 0x7C, 0x30, 0x30, 0x30, 0x1C, 0x00, /* t */
/* 75 */  0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x3E, 0x00, /* u */
/* 76 */  0x00, 0x00, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, /* v */
/* 77 */  0x00, 0x00, 0x63, 0x6B, 0x6B, 0x7F, 0x36, 0x00, /* w */
/* 78 */  0x00, 0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x00, /* x */
/* 79 */  0x00, 0x00, 0x66, 0x66, 0x66, 0x3E, 0x06, 0x3C, /* y */
/* 7A */  0x00, 0x00, 0x7E, 0x0C, 0x18, 0x30, 0x7E, 0x00, /* z */
/* 7B */  0x0C, 0x18, 0x18, 0x70, 0x18, 0x18, 0x0C, 0x00, /* { */
/* 7C */  0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, /* | */
/* 7D */  0x30, 0x18, 0x18, 0x0E, 0x18, 0x18, 0x30, 0x00, /* } */
/* 7E */  0x31, 0x6B, 0x46, 0x00, 0x00, 0x00, 0x00, 0x00, /* ~ */
/* 7F */  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /*  */

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